Momentous

1.

(of great importance) ដែលសំខាន់
Example: An event of momentous proportions prevented me from arriving on time.

2.

(បច្ចេកទេស) ដ៏សំខាន់

1.

Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs.

1.

consequential, critical, decisive, grave, important, influential, material, pressing, prominent, relevant, significant, weighty

1.

insignificant, irrelevant, mean, petty